▎ 摘　　要

NOVELTY - The system has a laser source connected with a surface enhanced Raman scattering (SERS) probe through an optical fiber. The SERS probe is fixed with a detection area. A polydimethylsiloxane (PDMS) /silver nano particle/grapheme scattering substrate is provided with a PDMS three-dimensional (3D) micro-nano antenna structure. A graphene layer is adhered with a silver nano-particle surface. A spectrometer is utilized for detecting a molecular Raman scattering signal. The scattering substrate is adhered with a silver nano particle layer and the graphene layer. USE - PDMS 3D micro-nano antenna based SERS micro-flow controlling system. ADVANTAGE - The system realizes graphene oxide silver nanoparticles protecting function to increase chemical strength of a PDMS 3D micro-nano antenna structure to improve silver nano-particle filling effect. The system adopts an enhanced Raman hot spot to improve local area surface plasma resonance and increase Raman scattering signal intensity by utilizing PDMS material and optical fiber. The system is simple to manufacture and inexpensive, and realizes portable molecule on-line detection in a convenient manner. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a PDMS 3D micro-nano antenna SERS surface enhanced Raman scattering micro-flow controlling system.